1224509087 has 4 divisors (see below), whose sum is σ = 1225016880. Its totient is φ = 1224001296.

The previous prime is 1224509047. The next prime is 1224509089. The reversal of 1224509087 is 7809054221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7809054221 = 541 ⋅14434481.

It is a cyclic number.

It is not a de Polignac number, because 1224509087 - 2²⁴ = 1207731871 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1224509087.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1224509089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 250262 + ... + 255107.

It is an arithmetic number, because the mean of its divisors is an integer number (306254220).

Almost surely, 2^1224509087 is an apocalyptic number.

1224509087 is a deficient number, since it is larger than the sum of its proper divisors (507793).

1224509087 is an equidigital number, since it uses as much as digits as its factorization.

1224509087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507792.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 1224509087 is about 34992.9862543910. The cubic root of 1224509087 is about 1069.8445306477.

The spelling of 1224509087 in words is "one billion, two hundred twenty-four million, five hundred nine thousand, eighty-seven".